PCA9554C 查看數據表（PDF） - NXP Semiconductors.

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PCA9554C

Low-voltage 8-bit I2C-bus and SMBus low power I/O port with interrupt, weak pull-up

NXP Semiconductors. 

NXP Semiconductors

PCA9554B; PCA9554C

Low-voltage 8-bit I2C-bus/SMBus low power I/O port

2. Features and benefits

 I2C-bus to parallel port expander

 Operating power supply voltage range of 1.65 V to 5.5 V

 Low standby current consumption:

 1.5 A (typical at 5 V VDD)

 1.0 A (typical at 3.3 V VDD)

 Schmitt-trigger action allows slow input transition and better switching noise immunity

at the SCL and SDA inputs

 Vhys = 0.10  VDD (typical)

 5 V tolerant I/Os

 Open-drain active LOW interrupt output (INT)

 400 kHz Fast-mode I2C-bus

 Input/output configuration register

 Polarity inversion register

 Internal power-on reset

 Power-up with all channels configured as inputs

 No glitch on power-up

 Latched outputs with 25 mA drive maximum capability for directly driving LEDs

 Latch-up performance exceeds 100 mA per JESD78, Class II

 ESD protection exceeds JESD22

 2000 V Human Body Model (A114-A)

 1000 V Charged-Device Model (C101)

 Packages offered: TSSOP16 and HVQFN16

PCA9554B_PCA9554C

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 1 — 19 September 2012

© NXP B.V. 2012. All rights reserved.

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